Kamen Rider Vulcan (仮面ライダーバルカン) is the secondary rider of Kamen Rider Zero-One.

Isamu Fuwa (不破 諫) is a captain of A.I.M.S, a taskforce dealing with rogue Humagears. As a child he was the sole survivor of a Humagear uprising, and holds a grudge against the androids for his entire life. Taking a Shotriser and breaking open the Shooting Wolf Progrise Key from A.I.M.S weapon vault, he becomes Kamen Rider Vulcan.

Shooting Wolf (シューティングウルフ) is the base form for Kamen Rider Vulcan, accessed using the Shooting Wolf Progrise Key in the A.I.M.S Shotriser (エイムズショットライザー). The form improves Vulcan's marksmanship abilities, and increases the power of the shots of the Shotriser.

First appearance: Kamen Rider Zero-One Episode 2